10 Pack 8GB USB Flash Drive Memory Stick with 10 Lanyards , DataFortress 20MB/S High Read Speed Memory Stick (Bright Blue 8GB) Grade A chip High Spped USB 2.0 chip speed fast than normal USB2.0 Fast data transfer rate--Read: 20MB/sec & Write: 8MB/sec. Works on all Major Operating Systems: Windows, iOS,Linux etc. Bulk: 8GB flash drive 10 pack with 10 Lanyards All E-Soar products are backed up with 1 year warranty & life time friendly customer service